Ubom, R. M. (2014). Soil-Vegetation Interrelationships in Isoberlinia Woodlands of Northwestern Nigeria.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUbom, R. M. Soil-Vegetation Interrelationships in Isoberlinia Woodlands of Northwestern Nigeria. 2014.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUbom, R. M. Soil-Vegetation Interrelationships in Isoberlinia Woodlands of Northwestern Nigeria. 2014.
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